I have subscribed to the Flash and Reader security bulletins at the following link:
However, aside from the first month I received an update, I haven't received any since.
My colleague who uses the same domain, however, has no problems.
Tried re-subscribing, same issue.
Online chat asked me to post it here
Please PM me the email you used to subscribe. I will get in touch with the concerned team and see what is the issue.